← The evidence ledger
Evidence row 127254
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://zeuskb.com/kb/aivu-apac-audio-extraction
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- eef5baa51e9bec633af5c69cf3f4514821ee8604112a61dd8ea10b742d905b80
- Leaf
- 0x2ca3f7f5cb3f33761147fb66cb192379707919fc95463da95b7cf36ee934111e
What was observed
{
"endpoints": [
[
"x402",
"https://zeuskb.com/kb/aivu-apac-audio-extraction"
]
],
"name": "Zeus Visuals Immersive KB",
"owner_address": "0xd20732433e3732c5703eb1eb205b58dee4d1e567",
"raw": {
"accepts": [
{
"amount": "100000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"payTo": "0xd20732433e3732c5703EB1Eb205b58DeE4D1e567",
"scheme": "exact"
},
{
"amount": "100000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "BxaZd1pxVfpMYdns6eedACfSaTo3TzofUhow8BtpdTA9",
"scheme": "exact"
}
],
"description": "Getting audio out of an AIVU when FFmpeg says \"no decoder found for apple_apac\". Apple Immersive (AIVU) audio is APAC, which FFmpeg can't decode or copy into MP4, and Apple's automatic stereo mix silently returns silence. The working fix is to decode APAC natively to PCM with AVFoundation, then encode with FFmpeg. Exact errors, settings, and gotchas.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {},
"type": "http"
},
"output": {
"example": {
"content": "Full markdown text of the entry",
"slug": "aivu-apac-audio-extraction",
"tags": [
"apple-immersive-video",
"aivu",
"apac",
"spatial-audio",
"ffmpeg",
"avfoundation",
"audio",
"conversion"
],
"title": "Getting audio out of an AIVU when FFmpeg says \"no decoder found for apple_apac\"",
"updated": "2026-10-07"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791425890/bazaar-icons/de2dcffcf82032ab.png",
"lastUpdated": "2026-10-23T22:51:03.691Z",
"quality": {
"l30DaysTotalCalls": 5,
"l30DaysUniquePayers": 4,
"lastCalledAt": "2026-10-23T22:51:03.293Z"
},
"resource": "https://zeuskb.com/kb/aivu-apac-audio-extraction",
"serviceName": "Zeus Visuals Immersive KB",
"tags": [
"apple-immersive-video",
"aivu",
"apac",
"spatial-audio",
"ffmpeg"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Getting audio out of an AIVU when FFmpeg says \"no decoder found for apple_apac\". Apple Immersive (AIVU) audio is APAC, which FFmpeg can't decode or copy into MP4, and Apple's automatic stereo mix silently returns silence. The working fix is to decode APAC natively to PCM with AVFoundation, then encode with FFmpeg. Exact errors, settings, and gotchas."
}What the leaf hashes
{"body":"eef5baa51e9bec633af5c69cf3f4514821ee8604112a61dd8ea10b742d905b80","id":127254,"kind":"listing","method":"baseline/1","observed_us":1793025637757384,"prev":null,"subject":"x402_bazaar:https://zeuskb.com/kb/aivu-apac-audio-extraction","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).
- 0x2ca3dff6301f74982d8ac3fb4b2b4c8c895c376d584df4af3b458a6ab3c042aa
- 0xa42ff1d931e3203a7c0e5120a4240c7ee628f81fb3ba3a761d30f80d0d0e0b23
- 0x8c7e21d979bbbf4be89ed770ad120f5539117bf388d51d1d3f87f688bb7c97c9
- 0x930f86cc9b7d728f5c7b198772b4f831401013885027a3a9784763381a0bc9ef
- 0x65826bdbf4515a56667acf3ab6b87e8d5beae781c76734c1cf60558a1632e9cc
- 0xeffee48a56931534184e78006744b52ba3827e8fc575869a49d2e824cf3efe40
- 0x3992ef7d77cdc63028f12357cdde066ddc987d25fb82961cd08ea8a0e34d9e61
- 0xcb80d18a740ba1dc45c76a5cc87f62e5a6f0683b935f2cc0da3c1e23a3141b5b
- 0x7420dba81dac91978bdf01f95a02b6ae12fba03502cf439be566afd5217ef304
- 0x92ae512ac303ebf33e234dd8900de38bc100cacd7e3e6d4585dab96308c421ca
- 0x9f7d3cc11f13fc54c5221c4babc2273f69d77c4b805c79df41df74cfb0975d6c
- 0xf89d9951e0a8e08b9cf11177a1f4e0fd86d9facc5dfecaabbfe564675ebefef7
- 0xb87e8b32cda179c9e632e227bbd8a6d1f6f61d9d81bb92dbd4dd835d2b3b5caa
- 0x683955a5b2250ad50568d022a6580d8739b6aff1356779d72a773b088e7c289c
- 0x610738e0c43687aded83c613c73de8b5226c73c375858a167436461c522ea213
- 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae